P31C4

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

- Turn power switch OFF and wait at least 20 seconds.
- Make sure that 12V battery voltage is 11 V or more.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT
1.Turn power switch ON and wait at least 10 seconds.
2.Turn power switch OFF and wait at least 20 seconds.
3.Repeat steps 1 and 2 for 3 times.
4.Check DTC.
Is DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK VCM POWER SUPPLY

Check VCM power supply (battery power). Refer to "VCM : Diagnosis Procedure" VCM
Is inspection result normal?
YES- GO TO 2.
NO- Repair or replace error-detected parts.

2. INTERVIEW THE CUSTOMER

Interview the customer to see if there is a removal history of 12V battery terminals.
NOTE:
DTC "P31C4" may be detected when 12V battery terminal is disconnected.
Is there a removal history of 12V battery terminals?
YES- GO TO 4.
NO- GO TO 3.

3. CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace error-detected parts.

4. PERFORM DTC CONFIRMATION PROCEDURE AGAIN

With CONSULT
1.Reconnect all harness connector disconnected.
2.Turn power switch ON.
3.Erase DTC.
4.Perform DTC confirmation procedure again.
Is DTC "P31C4" detected again?
YES- Replace VCM. Refer to "Removal and Installation" Removal And Installation.
NO- INSPECTION END